Entity Framework + MySQL 使用笔记

添加：

 1 using (var edm = new NorthwindEntities())
 2
 3 {
 4
 5 Customers c = new Customers { CustomerID = "c#", City = "成都市", Address = "中国四川省", CompanyName = "cnblogs", Country = "中国", Fax = "10086", Phone = "1008611", PostalCode = "610000", Region = "天府广场", ContactName = "风车车.Net" };
 6
 7 edm.AddToCustomers(c);
 8
 9 int result = edm.SaveChanges();}

删除：

using (var edm = new NorthwindEntities())

{

Customers deletec = edm.Customers.FirstOrDefault(cc => cc.CustomerID == "c2");

edm.DeleteObject(deletec);

int result = edm.SaveChanges();

}

修改：

1 using (var edm = new NorthwindEntities())
2 {
3 Customers addc = edm.Customers.FirstOrDefault(cc => cc.CustomerID == "c2");
4 addc.City = "CD";
5 addc.ContactName = "cnblogs";
6 addc.Country = "CN";
7 int result = edm.SaveChanges();
8 }

分页+排序：

1 private static List<Post> GetPostList(int pageIndex, int pageSize)
2 {
3     int startRow = (pageIndex - 1) * pageSize;
4     using (var db = new EdiBlogEntities())
5     {
6         var query = db.Post.OrderByDescending(p => p.PubDate).Skip(startRow).Take(pageSize);
7         return query.ToList();
8     }
9 }